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houston station on space to ground

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welcome to space to ground i'm kayla

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lafrance four astronauts launched to the

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international space station this week

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while two cosmonauts ventured outside

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falcon the freedom range

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nasa's spacex crew 4 commander chell

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lindgren along with astronauts bob hines

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jessica watkins and samantha christopher

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reddy lifted off early wednesday morning

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from the kennedy space center in florida

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the launch of the crew dragon freedom

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occurred just two days after the

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undocking of axiom mission 1 the first

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all-private astronaut mission to the

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orbiting outpost

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when crew 4 arrived at the station they

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were greeted by the crew 3 astronauts

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and their russian colleagues

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this is the first space flight for

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astronauts watkins and heinz and the

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second trip to space for lindgren and

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christopher reddy

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the crew 4 astronauts will work on all

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kinds of science experiments during

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their stay on the station

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many focus on ways to improve life here

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on earth while others help us learn how

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to keep people healthy in space on long

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duration missions

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the iss national lab sponsored

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protein-based artificial retina

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manufacturing investigation launched

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alongside crew 4 and dragon freedom

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scientists are testing the manufacture

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of artificial retina films in

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microgravity where the quality and

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stability of the films could be improved

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by a lack of sedimentation the aim of

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this research is to one day restore

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meaningful vision to patients affected

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by retinal degenerative diseases they'll

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also continue the x-root experiment

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which uses liquid-based hydroponics and

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air-based aeroponic techniques to grow

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plants without soil

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you can keep up with all the exciting

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science crew 4 will conduct during their

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time on orbit by following at iss

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underscore research

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work continued outside of the station

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with the second spacewalk in two weeks

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by a pair of russian cosmonauts

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the primary task for oleg artemyev and

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denise motve was the continuation of

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work on the european robotic arm the duo

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jettison thermal blankets used to

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protect the arm during its launch with

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the nioga multi-purpose laboratory

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module to the station they also flexed

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the arm's joints released launch

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restraints and monitored the arm's

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grapple ability

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that's face to ground for this week

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thanks for watching we'll see you next